Merge pull request #4 from romanjakubco/master

Root-logger via API
Download AS to target/as-dist to make further setup actions easier.
Set org.jboss.loom.MigratorApp as main class for the dist archive.
Update logging conf
Support multiple apps on params.
Allow params without --
Update usage text to be clear about AS 5 and AS 7 dirs.
Fix NPE
Any param starting as5. or as7. is now also settable as:
[as5|eap5|srcServer].xxx
[as7|eap6|targetServer|wfly].xxx
Changed params as per MIGR-88
MIGR-83  Use maven-license-plugin.
MIGR-83 Add license headers.
Update README.md (and rename from README)
Update README.md - MIGR-84 note
Add parsing test.
Add ManualAction to be used for unsupported parts of configuration migration.
Add ManualAction announcement.
Add apps unzip
Fixed test environment.
ver 0.9.1
Updated README - MIGR-88, MIGR-86